Paper registering system



Feb. 11, 1941. LHTTALUGA. 2,231,735

PAP-ER REGISTERING SYSTEM Filed March 8, 1940 3 Sheets-Sheet 1 .4 axis Patalaga, v

I mentor Feb. .1 1941. L.PITTALUGA 2,231,735

BAPER REGISTERING SYSTEM Filed March 8, 1940 3 Sheets-Shet 3 Ali (denia Louis Pz'ffa-ZagKg "Patented Feb. 11,1941

' UNITED STATES- PATENT OFFICE 2.231.735 rarna anorsrsnmc srs'rau' Louis Pittaiuga, Philadelphia, 1... assignor to Frank H.

Fieer Corporation, Philadelphia, Pa.,

a corporation of Delaware Application March 8, 194., Serial No. 322,872

12 Claims.

The present invention relates to a feeding mechanism for webs of paper or other material and more particularly to a control for-maintaming an accurate register of sections of a web of material with a severing knife or other-associated,,means. The .presentfinvention =is illustrated as applied to the paper registering control of U. 8. Letters Patent No. 2,119,670 and'is an improvement thereon as well as upon U. B. Letters Patent No. 2,108,767. Thus as will appear more in detail the mechanism with which the invention is associated is for feeding a web of materialhaving a pluralityof pictures 61' designs printed thereon; each of which when severed from the web forms an individual wrapper for one piece of chewing gum or other confection or article. Thus for proper wrapping relation between the article and the illustrated wrapper, it is essential that the feeding of the web be so controlled as to always register the dividing line between wrappers with the severing knife. Without such control the creep of the web, either forward or backwa j sogn results in such misaiinerr ment that a single wrapper'an'saaw" parts of two designs instead of the intended one com-' plete design. a

Some of the'objects of the present invention are to prov ide an lmprovedfeedcontrol for a welTdfTnTaTterial; to provide a novel mechanism for maintaining an accurate register-between a given point, such as a severing knife, and a definite point on a web of material; to provide 'a simple registering control for a web of msterial wherein complicated. electrical circuits, including relays, thermal control switches, and delicate contacts are eliminated and incidentally, out of control conditions inherent in such cir cuits; to provide L resistering'control wherein a travelling web of material is restored quickly and accurately to a predetermined registered relation with a severing device when such registered relation has been disturbed; and to pro- "of paper to be fed corresponding with the d scessive'des igns. The shaft i! is jom'nalled in the frame shafts i2 and II results in the linear propulsion vide other improvements as will hereinafter apthe invention; and Fig.

tion. ,I

Referring to-the drawings one formof the present invention is shown as a part of an article wrapping machine and in association with 5 6 represents a side elevathe web feeding means as a registering control therefor.- The feeding means for the web ill withits tension control and web roll mounting may be that shown in Fig. 1 of Patent No. 2,108,787 for imparting the desired intermittent motion to the web by means of the Geneva wheel II which is keyed to the shaft I! to turn the metal or other hard surfaced feed roller 13.

A controfrollerhllcofresilient or deformable material is mounted to press the web lli against the metal roller I! to feed the web. The action of the Geneva wheel and its adjuncts is such that each feeding movement causes the web Hi to travel a length equal to the length of one wrapp r. Thus when the web carries a succession of designs, one for each wrapper, each rota'JoncftheGeneirwwheeHLwillcausena lggth A tance between corresponding portions of s'uc- 25 I! to transmit its intermittent motion through gears l6 and II to a control shaft- II which drivesthe .hub is oi which the resilient control roller I4 is. a part and forms a '30 circumferential radially projecting web propelling surface. Thus each rotary movement of the shaft I2 is transmitted through the gears It and I! to rotate the shaft I8 in the opposite direction. Thus the intermittentv rotation of the 35 of the web ll step by step under the'pressure of the control roller II. In accordance with the present invention the set relation of the con-. trol roller I4 is such that the web II is subjectto a small backward creep, measured for example in thousandths of an inch-per design, and

the function of the mechanismof the invention is to automatically restore the web to registration quickly and accurately when the aforesaid creep becomes a predetermined maximum. This by increasing the pressure of the control" roller ll at the time when the'creep has reached the point where the severing, means functions on a design insteadof-between two designs the web can be quickly'bro s t back torelation. Byreference to the portion of the web llshownin the drawingsitwillbeseen that thejsevering knife "is in register with one 'of the black index' marks-2| on the web ll, this}! sociation with a photo-electric cell 23.

. latter is in an electric circuit 24 including an I which is under control of the mechanism of the this set position a lock nut 35 anchors the screw.

amplifier energized from a source of current such as 110 volt A. C.

' For varying the pressure of the control roller lorop tinsthewormwheeltmawormfl is in mesh with the wheel I and-consists of a spindle 82 mounted in bearing ears 4! with the worm GI of larger diameter than the spindle." and interposed in abutting relation to the aforesaid ear-s63. Thus the ears O3 become thrust abutments for the worm 6| preventing linear movement thereof to. thereby translate the motion into a rotation of the wheel to. A knurled -adjusting sleeve 32 having a quick pitch external thread 32 riding in a complemental in- .l4, the shaft |8 has its ends respectively jour- ,head' 44 is fast to the Me I for manual 10 nailed in blocks 26 and 21. each slidable on the operation if esired- As h wn he r are frame l5 so that the distance between the parformed integral with a ircular-shamin w h allel shafts l2 and 7 l8 can be varied according to is supp r ed by the sleeve 32 tho h f y 7 requirements, Thus th block 3 1 gn t able relative thereto. A hub 62 forms a part of by an a iusting screw 28 for manual control of the 1101181118 5' 0 pm idc 8 u stantial bearin N th pressure by 't lever 3 The block 27 area. A collar 81 is secured to the sleeve 32 by a set screw 88 to prevent axial displacement of the present invention for automatic correction of 1101151118 A Ilia-metrical pp si Po n the u o t of e t conditions is operated by the housing 65 is provided with apertured lugs ll and fouowmg preferredlconstmcuon' means which controls the turning movement of An elon r' V gated so ew threaded through an thehousing 65. Since the preferred setting of the control roller I4 is to initiate a backward te creep the link 48 of the solenoid armature is I ,123 gi i g, i m fi g i gi pivotally attached to the lug II in order that a 25 screw 3| is slotted on its projecting end to reclockwise turning of the 1mm! and mm ceive a screw driver whereby it can be fed to a wheel m feed the sleeve 32 the set position holding the block 21 where the con-' directmn ailsa r s r the feed trol roller l4 exerts the predetermined pressure Hence the restoring spring is on the web I for normal feed with the afore-' i 3:; g 3 2 2 3:

respec vey oca e e e m 0 said small increment of backward creep. In the parts as required. In this form of the invention the manually operable worm 6| serves to set the worm wheel 6. relativeto the housing 65 so that the selected normal pressure is ap- 35 3| to. the sleeve 32 so that both parts will turn together.

For controlling the operation of the sleeve 22,

a collar 36 is fixed to the sleeve 32 by a set'scrw plied to the control roller thereafter the worm wheel 60 and housing. 65 move together in 31 or the like and carries two diametrically opresponse to the enemmuon of the a 018mm 48 posite lever arms 40 and 4| arranged to swing on an arc determined as to length by fixed stops or the action of the spring Due to wear or 42 and 43 located in the path of one of said arms. other causes the presme setting can be promptly Normally the arms 40 and II are m the full line readjustedby turning the head as required position shown, which corresponds to the normal In the operation or the control of the present II for attachment of the respective actuating 20 setting of pressure on the control roller I4, and

are so .heldby the tension 'ofa spring 44 stretched invention the two adjusting screws. and 2| are so set as to cause the resilient feed roller II to between the arm 4| and a fixed part 45 locatekg upon the web in such manner than 45 at a convenient location on the frame of the wrapping machine. The arm 40 is pivotally attached to one end of a link 46 which has its opwhen accumulated creep reaches such a maxi" posite end likewise connected to the plunger 41 I tepbysteptravelisaccompanied by a fractional backward creep at each forward movement.

mum as removes an index 2| fromthe vision of the photo cell 23, the amplified current in circuit m of a solenoid 48. This solenoid 48 15 arranged to be energized by a circuit including conductors 50 energizesthe relay to closLthe' switch 52 and 5| leading respectively from the current :and thus energize the solenoid 40. The solenoid source lines As shown the solenoid circuit is draws its plunger and thereby rocks controlled by a pivoted switch in the form of an lever to turn the sleeve a clockwise and armature 52 of a relay 53 which latter is in 8. thereby shift the screw axially (to the fight circuit 54 receiving the amplified current emanatas seen in 2) to move the block close-r to ing from the circuit of the photo-electric cell. the frame This action in increasing The circuit 54 is provided with a condenser 55 the pressure of the control roller |4 so that at sufllciently large so that the relay 53 only rethe next mmrding 8 step the web I. is sponds to the current relative to the stationary accelerated to Enemy/restore the registration of position of the registering index and is nap an index 2| with the knife 2.. Such restoration fected by the intermittent motion of the paper. 4 sensed by the photo-cell upon the restored A manually operated switch 56 may be located mdex whereupon the purrent m the grew is in the solenoid circuit, if desired, to ensure dew ins-umclent 5 mammn the relay energization of the solenoid during adjustments sized and consequently 9 switch 52 is opened 55 v of web renewals by the pull of the stretched spring and the 4 In. the form of the invention shown in Figs. 5 solenoid deenergizedspring now tune and 6, the sleeve 32 has a worm wheel 60 keyed tions tor-return the lever arms 40 and 4| to the thereon so that rotary movement thereof will coninitial and thereby withdraw the sleeve trol the pressure of the control roller l4 upon 32 until the screw 3| reaches ts original ttin th b of m t i L Th a lo k i turning holding the control roller |4 under'the initial of the worm wheel 60 will increase the pressure p de m d' ep pr ur I to restore registration while counter-clockwise While in the foregoing the invention has been turning will decrease the pressure to that of norapplied to a backward creeprelation it is'to be mal setting. I understood this is only by way of exampleas the 'll Stan out of register condition in a travelling web of material which is required-to be cut into equal lengths at certain-points. In registration control means it has been heretofore a main object to provide a control so highly sensitive that an immediate response to creep in either direction takes place for correction purposes. Such mechanisms, however accurate have been found to require constant adjustment, frequent repairs, and over watchful attention of operators, this latter meaning careful selection of skilled workers, and attendant time loss in teaching operatives. By the present invention a relatively coarse control, as distinguished from the now usual sensitive find control, is provided and which fosters a cumulative creep until it reaches the magnitude of an out of register condition. When this hap pens the response of the control is immediate and the web is practically kicked back to registered position. Thus intricate and complicated electrical circuits, contacts and controls are reduced to a minimum and the operator is relieved of keeping track of numerous indicators which have heretofore been a part of the more complicaited control mechanism. Furthermore unskilled workers can be placed on machines without long trial and learning periods.

Having thus described my invention, I claim:

. 1. A material feed control comprising the combination of a pressure device for feeding a web of material step by step past a predetermined point and being initially set to register said web with said point in a predetermined relation in each stop position, means to adjust said device to cause said web to gradually creep in a selected o direction to finally bring said web relation to said point out of register, and means for automatically changing the adjustment of said device to vary the pressure of said device to restore said registered relation.

2. A material feed control comprising the combination of a pressure device for feeding a web of material step by step past a predetermined point and being initially set to register said web with said point in a predetermined relation in each so stop position, means to adjust said device to cause said web tp gradually creep in a selected direction to finally bring said web relation to said point out of register, means for automatically changing the adjustment of said device to .vary the 55 pressure of said device to restore said registered relation, and means to reset said device to its web pressure creeping relation after said readjustment.

3. A material feed control comprising the com-- 60 bination of a pressure device for feeding a web of material step by step past a predetermined P int and being set to register said web with said point in a predetermined relation in each stop position, means to adjust said device to cause said web to gradually creep in a selected directiontofinallybringsaidwebrelationtosadd pointoutofregister,andmeansincludingasolenoid for automatically changing the adjustment of said device to varythe pressure of said device 70 torestoresaidregisteredrelation.

4. A material feed control comprising the combination of a presure device for feeding a webof material-stepbysteppastapredeterminedpoint. saidwebhavingindiciathereonaadbeinginitially u settosuccessivelyregistersaidindiciawithsaig point as said web. travels, means to adjust the pressure of said device to cause said web to gradually creep in a selected direction to finally bring said indicia out of register with said point, means including a solenoid for changing the pres- 5 sure adjustment of said device, and means including a photo-electric cell controlled by said indicia for energizing said solenoid. 5. A material feed control comprising the combination of a pressure device for feeding a web of material step by step past a predetermined point,

said web having indicia thereon and being initially set to successively register said indicia with said point as said web travels, means to adjust said device to cause said web to gradually creep in a selected direction to finally bring said indicia out of register with said point, means including a solenoid for changing the pressure adjustment of said device, means including a photo-electric cell controlled by said indicia for energizing said solenoid, and means to reset said device to web pressure creeping relation when said solenoid is deenergized.-

6. A material feed control comprising the combination of a device for feeding a web of material step by step past a predetermined point, said device including a resilient roller coacting with said web, a control screw arranged to-be adjusted to cause said roller to press against and feed said web with a gradual creep in a selected 80 position, a sleeve threaded on said control screw and having an external thread of quick feed pitch, a fixed nut internally threaded complementally to said sleeve external thread, means including a solenoid for shifting said sleeve to vary the adjustment of said control screw, and means responsive to an out of register relation of said web for energizing said solenoid.

7. A material feed control comprising the combination of a device for feedinga web of material step by step past a predetermined point, said device including a resilient roller coacting with said web, a control screw arranged to be adjusted to cause said roller to press against and feed said web .with a gradual creep in a selected position, a sleeve threaded on said control screw and having an external thread of quick feed pitch, a fixed nut internally threaded complemen tally to said sleeve external thread, means including a solenoid for shifting said sleeve to vary the adjustment of said control screw, means-responsive to an out of register relation of said web for energizing said solenoid, and spring operated means for restoring said sleeve to its initial position when said solenoid is deenergized.

8. A material feed control comprising a resilient feed control roller, means including an adjusting screw for holding said roller in feeding relation, with a pressure permitting a web of material to gradually creep in one direction, a reciprocable part connected to said screwfor moving the latter to vary the pressure of said roller, means including a solenoid for movin said reciprocable part toincreasethepressm'eofsaidrollerandacceierate the travel of said'web, means'responsive to an out of register relation of said web for energizing said solenoid, and spring operated meansformoving saidparttorestorethemrmal set pressureon said roller.

, 9. Amaterialfwdcontrolcompfisingaresilient '1 feed control roller, means including an adjusting screwfor holding said roller in feeding relation, with a pressure a web of material to gradually creep backward. a-recir ble D r connectedtosaid screwrorm sthel r 75 vary the pressure 01 said roller, means including i a solenoid tor moving said reciprocable part to initially set to register, said web with said point in a predetermined relation, rotative means for varying the pressure of said device, a rockmember' operatively associated with said rotative means for control purposes, a solenoid for rocking said member in one direction, a spring for rocking said member in the opposite direction,

and means responsive to out of register relation between saidweb and point to energize said sclenoid to restore registration conditions.

11. A material feed control comprising the combination of a device for feeding a web of material past a predetermined point and bein initially set to register said web with said pc in a predetermined relation, rotative means varying the pressure of said device, a worm wh mounted to operate said means, a housing ab said wheel, '-a worm rotatably mounted on s housing in mesh with said wheel, and means sponsive to out or register relation between $1 web and point for turning said housing to actu said wheel to vary the pressure of said feed device.

12. A material feed control comprising 1 combination of a device for feeding a web of n terial past a predetermined point and. be initially set to register said web with said no in a predetermined relation, rotative means varying the pressure of said device, a worm wb mounted to operate said means, a housing ab said wheel,- a worm rotatably mounted on 5 housing in mesh with said wheel, and means eluding a solenoid responsive to out of regis relation between said web and point for turn said housing to actuate said wheel to vary pressure of said feeding device.

, LOUIS PI'I'IALUGA PatentFNO; 2 33 735 GER IFICATE oncomcwzori; V r v February 11, 191;.1. LOUIS PIT'IALUGA.

v It 18 h:6rbi-' O8rt1 f1d that the above numbered patentwaa erroneously iasned to Frank HI'Fleer Corporation, a corporation of Delaware"; as as- 'signee of the entire interest in said invention, whereas said Letters Patlent sh'lildliajfO been issued to the inventor, Louis Pittaluga, andto Frank B. Fijeer Corporation, a corporation of Delaware, said corporationbeing assigneeof on'e-'-half interest onlyin said invention, as shown by the record of assignments in this office; and that the said :LettersPate'nt should be ead withirthis oorredtion therein that the same may conform to the record 'er the em i n' the Patent Office.

Signed and sealed this 25th day of. March, A. is. 192m.

. I Henry Van v. irsdale, (Seal) Acting Commissioner of Patents. 

